Bearing for disk furrow-openers.



No. 780,522. I l PTENTED JAN. 24, 1905.' F. R. PAGKHAM.

BEARING FOR DISK FURROW OPENERS.

APPLICATION PII-.np APR. 11, 1904.'l

. 2 SHEET-7SHBET 1. v-

Wi h1 @was www - PATBNTED JAN. 24, 1905. P. R. PAGKHAM.

BEARING POR DISK FHRRow OPBNERS.

APPLICATION FILED APB..11, 1904.

2 SHEETS-SHEET 2.

warum UNITED STATES Patented January 24, 1905.

PATENT OEEICE.l f

SEEDING MACHINE COMPANY, OF JERSEY- CITY, CORPORATION OF NEW JERSEY.

NEw JERSEY, A

BEARING Fon 'DISK FURRow-OPENERS'.

SPECIFICATION forming part of Letters Patent No. 780,522, dated January 24, 1905. Application filed April 11, 1904:. Serial No. 202,624.

present a minimum width in the direction of travel, thereby more freely liberating dirt or trash which 1s liable to accumulate when furrow-openers with narrow spacmgs are used,

-\ especially in wet or sticky soil.

Afurther object of my invention is to provide a bearing for disk furrow-openers that shall be practically dust and dirt-proof and easily and adequately lubricated.

The objects of my invention are accomplished by the constructions and combinations of parts hereinafter described, and shown in the accompanying drawings.

Figure l is a side elevation of the device embodying my invention, shown on the concave side of the disk. Fig. 2 is afsectional view of the same, taken'through the diskbearing and the lubricatingchamber, the lparts being shown detached and some of the parts being broken away. Fig. 3 is a detail view of the frame or disk-support, showing the recessed bearing. Figs. I and 5 are sectional views of the frame and disk with the parts more or less completely assembled. Fig. 6 is a view in detail of the disk-hub, and Figs.

7 and 8 are detail views of the auxiliary bear' ing which fits into said disk-hub.

Like parts are represented by similar characters of reference in the several views.

In the drawings, a represents a frame or support, which is preferably arranged to carry the grain-conduit a and isvattached to the usual drag-bar a2, by which it may be secured to the vmain frame of the seeding-machine. This frame a is provided with a recessed bearing a3, which extends only partly through the frame, there being no opening through the back, except an opening for a fasteningbolt, which opening is closed when the parts are in position.

The furrow-opening disk b, formed of steel in the usual manner,'is secured to a flanged hub Z2', preferably by rivets, which are passed through the flange b2 and the steel portion of' the disk. This hub b is provided with an outer tapered bearing 3 and an inner ltapered bearing b4. The outer tapered bearing fits in the recessed bearing a3 of the frame a, which is made to tit the outer bearing b3 of the hub. After the huh is inserted in the bearing a? there is inserted into the inner bearing Z1* of said hub an auxiliary bearing-piece c, having a taperedflange c' to it the tapered inner bearing b4 of the flanged hub, and it has also an extended portion c2, adapted to extend entirely through the iianged huband rest against tended portion o2 being of smaller diameter than the inner bore of the hub, so as to leave a chamber into which the lubricant may be forced and to bring the bearing proper on the tapered surfaces of the hub and auxiliary bearing, respectively'. This auxiliary bearing-piece is further provided with a projecting lug c3, adapted to fit into a depression a5 in the frame to prevent said auxiliary bearing from turning. The flanged hub is provided with a .concentric groove on the outer or working face, and there is adapted to fit into this groove an annular flanged cap CZ, preferably formed of thin metal, with a peripheral flange d', to viit into said groove and a central opening cl2 to receive the fasteningbolt e, which fastening-bolt is adapted to hold all the parts together.

The frame a is preferably provided with an extended portion a, in which is formed a lubricating-channel a7, the top of which has a screw-threaded compressing-cap cts, forming a-chamber in which the lubricant is placed.v

This lubricating-chamber a7 is extended down along the back of the depressed bearing a3, forming a channel 609, whlch communicates vthe back of the recessed bearing a3, this exwith the chamber between the extended portion c2 of the auxiliary bearing-piece and the inner bore of the hub b. It is also preferably provided with a branched groove am, which extends outwardly and communicates with the outer surface of said frame at the point where the fianged hub b contacts with said frame.

rlhe auxiliary bearing c, it will be understood, is of such length that the parts may be drawn up tight and this auxiliary bearing clamped to the frame without clamping the disk-hub, thus completely closing the boltchamber from the bearing.

The assembling of the parts will be understood from the dabove description and from 'the drawings, Figs. 2, 4, and 5. seen that when assembled the disk has both an outer and an inner bearing, that it is of minimum width in the direction of travel, that the frame having the depressed bearing Vhas no opening in the rear which communicates with the bearing, and that the bearing is practically incased against the entrance of foreign substances, that the lubricant may be forced directly into the wearing-surfaces, and that the whole construction furnishes a disk furrow-opener which is particularly desirable f'or use with seeding-machines having narrow spacings and is designed with special reference to the conditions existing at seeding time in sections where it is customary to plant grain in the spring of' the year or at a time when the seed-bed is in a moist condition.

Having thus described my invention, I claim-- 1. The frame having the recessed bearing opening only at one side, in connection with the flanged disk-bearing adapted to fit into same, and a flanged cap fitting into an annular groove in said disk-bearing, and aelamp- It will be ing-bolt for holding the parts together, substantially as specified. Y

2. The combination with the disk having a central hub, of a frame havingareccssed bearing, an auxiliary bearing having' a tapered head fitted into said hub and engaging said frame, and a clamping-bolt, substantially as and for the purpose specified.

3. The combination of the frame having a recessed bearing, a disk having a fianged hub to fit into saidbearing, an auxiliary bearingpiece having a tapered flange to fit into said hub, and a flanged cap extending over said auxiliary bearing-piece and engaging in an annular groove in said hub, and means for clamping the parts together, substantially as specified.

4. The combination with the rotating disk having the flanged hub, of a frame having a recessed bearing, an oil-chamber in said frame, an auxiliary bearing-piece to fit in said hul) having a tapered bearing-flange, said bearing being reduced beyond said fiange to forni with said hub a lubricant-receiving chamber, substantially as specified.

5. The combination with the rotating disk having the tapered hub. a frame having' a recessed tapered bearing, an auxiliary bearingpieee having atapered fiange to fit in said hub and engaging parts between said bearing-[nece and frame, a fianged cap fitting over said hearing-piece, an annular groove in said disk to be engaged by said'cap, and a clamping-bolt extending through said frame` cap and auxiliary bearing-piece, substantially as specified.

In testimony whereof' l have hereunto set my hand this 8th day of' April, A. l). i90-L.

FRANK R. PACKI'IAM.

Witnesses:

FRED. B. ERNns'r, CHAs. 1. VVnLei-L 

